Bose QuietComfort 25 Noise Cancelling Headphones User Manual

Bose QuietComfort 25 Noise Cancelling Headphones User Manual

Please read and follow this Owner’s Guide and the Important Safety Instructions and keep them for future reference. For additional information about your headphones including accessories and replacement parts, refer to: http://global.Bose.com U.S. only: owners.Bose.com/QC25

Setting up the headphones

1. Tilt the headband away from the right earcup and open the battery compartment.

2. Insert one AAA battery.

3. Switch on the power button to activate Noise Cancelling.

4. The power indicator glows solid green.
   Note: When the power is off, the headphones will still provide audio.

5. For best quality audio, turn the power on. Connect the audio cable to the connector on the left earcup.

6. Connect the other end of the audio cable to the standard 3.5 mm headphone jack on your device.

Controlling your
iPod, iPhone, or iPad Easily control volume, track selection, and voice applications, plus switch between music and calls. Note: Full controls may not be available for some devices Connecting to in-flight entertainment systems 5 Audio jack configurations on airplanes vary. For a single 3.5 mm jack, first, use the audio cable plug directly; for a dual output jack, use the included adapter. If the airplane’s sound system is too loud for comfortable listening, the adapter can be used to reduce the volume with either a single or dual output jack.

Storing the headphones

Rotate both earcups so they lie flat. Then fold the right earcup in toward the headband. Place the headphones into the case. Caution: If the headphones will be stored without use for more than 30 days, remove Alkaline batteries to avoid leakage

Battery information

Note: While the indicator flashes, the headphones will continue to operate normally until the battery is fully depleted. Then the headphones will emit a soft clicking noise for approximately one minute before shutting down.

Troubleshooting

No noise reduction

• Make sure the headphone’s power is switched on. The power indicator should glow solid green.
• Replace the AAA battery. The power indicator blinks green when the battery is low.

Low or no volume

• Make sure a music source is playing and the volume is turned up.
• Make sure both ends of the audio cable are firmly connected. Crackling noise; intermittent loss of noise reduction
• Make sure both ends of the audio cable are firmly connected.
• Replace the AAA battery. Low rumbling sound
• Adjust the fit of the headphones on your ears.
• Make sure no foreign objects are inside the earcups and the port holes are not blocked.
• Replace the AAA battery.

The microphone is not working

• Make sure you are using a compatible device. See “Made for” on the product carton.
• Make sure both ends of the audio cable are firmly connected.
• Make sure the port holes on the earcup are not blocked.
• Try another phone call.
• Try another compatible device.
• The device is not responding to (remote) button commands
• Make sure you are using a compatible device. See “Made for” on the product carton.
• For multi-press functions, vary the speed of button presses

For your records
The serial number is located on the warranty card included in the carton and on a label inside the right earcup (R)

Please keep your receipt with the owner’s guide. Now is a good time to register your headphones. You can do this easily by going to http://global.Bose.com/register The warranty information provided with this product does not apply in Australia and New Zealand. See www.Bose.com.au/warranty or www.Bose.co.nz/warranty for details.

iPad, iPhone, and iPod are trademarks of Apple Inc. is registered in the U.S. and other countries. The trademark “iPhone” is used with a license from Aiphone K.K. “Made for iPod,” “Made for iPhone,” and “Made for iPad” mean that an electronic accessory has been designed to connect specifically to iPod, iPhone, or iPad, respectively, and has been certified by the developer to meet Apple’s performance standards. Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards. Please note that the use of this accessory with iPod, iPhone, or iPad may affect wireless performance ©2015 Bose Corporation. No part of this work may be reproduced, modified, distributed, or otherwise used without prior written permission

©2015 Bose Corporation, The Mountain,
Framingham, MA 01701-9168 USA
AM740399 Rev. 00
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